Usage Tips: LOCK AND SEAL - Grease coupler jaw design makes it easier to open and close the grease fitting, reinforced jaws and high-quality sealing gaskets long-lasting and stable performance, no leaks even at 17,000 PSI extreme pressure. High Quality - Made of high-quality refined iron, it can perform all-weather indoors and outdoors, stable and reliable. One-Handed Operation - Double handle anti- design and smooth retract mechanism allow for one-handed operation, easy to install or remove. Once locked onto the grease accessory, it stays open and frees both hands to operate the grease . WIDE APPLICATIONS - Compatible with 14mm standard, micro, battery, pneumatic, manual grease and fittings, it also fits M6 or M8 or M10 or M12 or M14 grease fittings, just replace your existing grease coupler. Material: Iron colour: Chrome Package Contents: 1 x Grease Nipples Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.